CN205038191U - Steam generator takes over inside radius check out test set - Google Patents
Steam generator takes over inside radius check out test set Download PDFInfo
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- CN205038191U CN205038191U CN201520751733.9U CN201520751733U CN205038191U CN 205038191 U CN205038191 U CN 205038191U CN 201520751733 U CN201520751733 U CN 201520751733U CN 205038191 U CN205038191 U CN 205038191U
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Abstract
The utility model provides a steam generator takes over inside radius check out test set, including circumference detector and radial detector, the circumference detector includes first base and linear array phased array probe, first base is equipped with the first inclined plane of downward sloping, be equipped with the wafer on the first inclined plane, linear array phased array probe installs on first inclined plane and cover on the wafer, the bottom surface of first base is the curved surface of inside concave yield, and radial detector includes second base and area array phased array probe, the second base is equipped with the second inclined plane of downward sloping, be equipped with the wafer on the second inclined plane, area array phased array probe installs on the second inclined plane and cover and be in on the wafer, the bottom surface of second base is the curved surface of inside concave yield. The utility model discloses can fine realization take over the detection achievement of inside radius to nuclear power station steam generator, can effectively detect out and take over regional circumference defect of inside radius defect and radial defect.
Description
Technical field
The utility model relates to nuclear power field, especially designs a kind of steam generator adapter filleted corner checkout equipment.
Background technology
At present, in nuclear power station, detection method for the main water supply connecting tube filleted corner of steam generator mainly adopts conventional Ultrasound pulse reflection method, and the method probe is placed in adapter with in the transition circle cambered surface of the cylinder body outer wall of steam generator, then adopts the shear wave of special angle to detect.Because the curved surface that face is a 3 D stereo form is passed through in adapter and the friendship of cylinder inboard wall, the orientation of its defect is had nothing in common with each other, the defect of a certain orientation is more responsive for ultrasonic wave acoustic beam direction, probe positions slightly changes, then the echo amplitude change of defect obviously, even blackout, cause the coverage of Site Detection less like this, and the recall rate of defect is low.In addition, due to steam generator main water supply connecting tube filleted corner complex structure, when enforcement ultrasonic pulse reflection method detects, architecture signals is more, flaw indication is difficult to identify, after finding that there is Signal aspects, can only adopt and carry out signal fusing with the artificial pulse-echo body of same position in 1:1 reference block, thus defective locations and equivalent size are judged, it has significant limitation.Therefore, a kind of equipment that can improve steam generator main water supply connecting tube filleted corner defect detection rate is needed.
Utility model content
It is good that the technical problems to be solved in the utility model is to provide a kind of Detection results, and discrimination is high, and then effectively improve the checkout equipment of steam generator main water supply connecting tube filleted corner defect detection rate, to overcome the above-mentioned defect of prior art.
In order to solve the problems of the technologies described above, the utility model adopts following technical scheme: a kind of steam generator adapter filleted corner checkout equipment, comprise circumferential detecting device and radial detector, described circumferential detecting device comprises the first base and linear array phased array probe, described first base is provided with the first downward-sloping inclined-plane, described first inclined-plane is provided with the multiple wafers according to linear array arrangement, described linear array phased array probe is arranged on the first inclined-plane and the bottom surface of linear array phased array probe and covers on the wafer, and the bottom surface of described first base is the curved surface be inwardly recessed; Described radial detector comprises the second base and face battle array phased array probe, described second base is provided with the second downward-sloping inclined-plane, described second inclined-plane is provided with the multiple wafers according to the arrangement of face battle array, described battle array phased array probe is arranged on the bottom surface covering of on the second inclined-plane and face battle array phased array probe on the wafer, and the bottom surface of described second base is the curved surface be inwardly recessed.
Preferably, described linear array phased array probe is provided with two, and two linear array phased array probes are arranged on the first inclined-plane side by side.
Further, described first inclined-plane forms projection from top to bottom, the secondary inclined-plane that first inclined-plane is divided into two, left and right symmetrical by described projection, described two inclined-planes is respectively equipped with the multiple wafers according to linear array arrangement, a linear array phased array probe is installed on two inclined-planes respectively.
Preferably, the side of described second lower end, inclined-plane is upturned, and the height of described tilting is lower than the height of the second upper end, inclined-plane.
Preferably, described linear array phased array probe is arranged on the first base by bolt.
Preferably, described battle array phased array probe is arranged on the second base by bolt.
As mentioned above, the utility model steam generator adapter filleted corner checkout equipment, has following beneficial effect:
The utility model utilizes the sector scan face in phased-array technique, can improve because defect orientation is complicated, the problem that signal identification rate is low, defect detection rate is low.
Through verification experimental verification, the utility model can realize the testing of nuclear power station steam generator adapter filleted corner very well, effectively can detect the circumferential defect of adapter filleted corner defect area (ASME code requirement) and radial defect, and detectable minimum defect size is long 25mm × wide 1.5mm × high 4.2mm, therefore has very high use value.
Accompanying drawing explanation
Fig. 1 is the circumferential detecting device in the utility model.
Fig. 2 is the first base schematic diagram in Fig. 1 on circumferential detecting device.
Fig. 3 is the radial detector in the utility model.
Fig. 4 is the second base schematic diagram in Fig. 3 in radial detector.
Fig. 5 is the cylindrical shell of steam generator and the connection diagram of adapter.
Fig. 6 is the operating diagram that in Fig. 5, circumferential detecting device is placed at A place after amplifying.
Fig. 7 is the working state schematic representation of radial detector in the utility model.
In figure: 1, circumferential detecting device 11, first base
12, linear array phased array probe 13, first inclined-plane
14, wafer 15, curved surface
16, projection 131, secondary inclined-plane
132, secondary inclined-plane 2, radial detector
21, the second base 22, face battle array phased array probe
23, the second inclined-plane 24, wafer
25, curved surface 3, adapter
31, adapter center line 32, defect area
4, cylindrical shell 51, first scanning face
52, the second scanning face 53, the 3rd scanning face
Embodiment
The structure that Figure of description illustrates, ratio, size etc., content all only in order to coordinate instructions to disclose, understand for person skilled in the art scholar and read, and be not used to limit the enforceable qualifications of the utility model, therefore the not technical essential meaning of tool, the adjustment of the modification of any structure, the change of proportionate relationship or size, do not affecting under effect that the utility model can produce and the object that can reach, all should still drop in scope that technology contents that the utility model discloses can contain.Simultaneously, quote in this instructions as " on ", D score, "front", "rear", the term such as " centre ", also only for ease of understanding of describing, and be not used to limit the enforceable scope of the utility model, the change of its relativeness or adjustment, under changing technology contents without essence, when being also considered as the enforceable category of the utility model.
As Figure 1-Figure 4, a kind of steam generator adapter of the utility model filleted corner checkout equipment, comprise circumferential detecting device 1 and radial detector 2, described circumferential detecting device 1 comprises the first base 11 and linear array phased array probe 12, described first base 11 is provided with the first downward-sloping inclined-plane 13, described first inclined-plane 13 is provided with the multiple wafers 14 according to linear array arrangement, described linear array phased array probe 12 is arranged on the first inclined-plane 13 and bottom surface of linear array phased array probe 12 and covers on described wafer 14, and the bottom surface of described first base 11 is the curved surface 15 be inwardly recessed.Described radial detector 2 comprises the second base 21 and face battle array phased array probe 22, described second base 21 is provided with the second downward-sloping inclined-plane 23, described second inclined-plane 23 is provided with the multiple wafers 24 according to the arrangement of face battle array, described battle array phased array probe 22 is arranged on the second inclined-plane 23 and bottom surface of face battle array phased array probe 22 and covers on described wafer 24, and the bottom surface of described second base 21 is the curved surface 25 be inwardly recessed.When reality uses, circumferential detecting device 1 and radial detector 2 are used alternatingly, by manually circumferential detecting device 1 and radial detector 2 being enclosed around the transition circle cambered surface circumferential movement one of adapter and steam generator cylinder body outer wall during use.Because circumferential detecting device 1 and radial detector 2 are equipped with curved surface 15,25, so when concrete operations, the curved surface 15,25 in circumferential detecting device 1 and radial detector 2 and transition circle cambered surface can fully be fitted, and ensure the stability of work.Further, described curved surface 15,25 is cylindrical shape.
As shown in Figure 4, in the utility model, the side of the second lower end, inclined-plane 23 in described radial detector 2 is upturned, and the height of described tilting is lower than the height of the second upper end, inclined-plane.The height on the second top and bottom, inclined-plane 23 is all take surface level as benchmark.The object of this preferred structure is the angular deflection ability in order to increase face battle array phased array probe 22, and reduction is checked sensitivity, reduced unnecessary undesired signal.
In the present embodiment, described linear array phased array probe 12 is arranged on the first base by bolt; Described battle array phased array probe 22 is arranged on the second base by bolt.
The action principle of the linear array phased array probe 12 in the utility model and face battle array phased array probe 22 is prior art, does not therefore do the statement of too much principle.
Composition graphs 1-Fig. 7, using method of the present utility model is:
The defect area 32 at butt tube 3 filleted corner place carry out circumferential defect detect time, first base 11 of circumferential detecting device 1 is placed in the transition circle cambered surface of cylindrical shell 4 outer wall of adapter 3 and steam generator, as shown in Figure 5,6, the scanning face 51, beamforming first scanning face 51, first sent of linear array phased array probe 12 parallel with adapter center line 31.During scanning, the first base 11 to abut in described transition circle cambered surface and circumferential movement one circle, takes off circumferential detecting device 1 after scanning is complete.In the present embodiment, in order to the covering of standard compliant target test range can be reached, and then the acoustic beam making linear array phased array probe 12 send polarizers of big angle scope can cover defect area 32, concrete enforcement structure is: described linear array phased array probe 12 is provided with two, two linear array phased array probes 12 are arranged on the first inclined-plane 11, to increase scanning area side by side.Further, described first inclined-plane 11 forms protruding 16 from top to bottom, the described protruding 16 secondary inclined-planes 131,132 being divided into two, left and right symmetrical on first inclined-plane 13, described two inclined-planes 131,132 are respectively equipped with on multiple wafers 14, two time inclined-plane 131,132 according to linear array arrangement and a linear array phased array probe 12 is installed respectively.The scanning angle of linear array phased array probe 12 can be increased by two secondary inclined-planes 131,132, increase surveyed area.
The defect area 32 at butt tube 3 filleted corner place carry out radial defect detect time, second base 21 of radial detector 2 is placed in the transition circle cambered surface of cylindrical shell 4 outer wall of adapter 3 and steam generator, as shown in Figure 7, the scanning face 52, beamforming second scanning face 52, second sent of face battle array phased array probe 22 vertical with adapter center line 31.During scanning, the second base 21 to abut in described transition circle cambered surface and circumferential movement one circle, takes off radial detector 2 after scanning is complete.Because the effect on the second inclined-plane 23, the angular deflection of face battle array phased array probe 22, is detectable region in the scope in therefore the second scanning face 53, scanning face 52 to the three, thus effectively can ensures sensing range.Through actual verification experimental verification, when carrying out radial fault detection, the scanning angular range that face battle array phased array probe 22 is checked is 40 ° to 85 °, face battle array phased array probe 22 can be allowed to produce the deflection angle of 30 ° by the second inclined-plane 23, and then make the different direction of growth radial area defect can and beamforming scanning face (between the second scanning face 52 and the 3rd scanning face 53 scope) angular range in intersect, and then produce wall reflection or end corner reflection, thus the defect of defect area 32 effectively detected.
Defect information operationally can be passed in industrial computer by circumferential detecting device 1 of the present utility model and radial detector 2 carries out unified analyzing and processing, and staff assesses according to the information detected the defect that filleted corner exists and processes.
In sum, the utility model steam generator adapter filleted corner checkout equipment, effectively can improve the defect detection rate of described filleted corner defect area, effectively ensures Detection results simultaneously.So the utility model effectively overcomes practical problemss more of the prior art thus has very high value and use meaning.
Above-mentioned embodiment is illustrative principle of the present utility model and effect thereof only, but not for limiting the utility model.The utility model also has many aspects can improve under the prerequisite of overall thought, all without prejudice under spirit of the present utility model and category, can modify above-described embodiment or change for person skilled in the art scholar.
Claims (6)
1. a steam generator adapter filleted corner checkout equipment, it is characterized in that, comprise circumferential detecting device and radial detector, described circumferential detecting device comprises the first base and linear array phased array probe, described first base is provided with the first downward-sloping inclined-plane, described first inclined-plane is provided with the multiple wafers according to linear array arrangement, described linear array phased array probe is arranged on the first inclined-plane and the bottom surface of linear array phased array probe and covers on the wafer, and the bottom surface of described first base is the curved surface be inwardly recessed; Described radial detector comprises the second base and face battle array phased array probe, described second base is provided with the second downward-sloping inclined-plane, described second inclined-plane is provided with the multiple wafers according to the arrangement of face battle array, described battle array phased array probe is arranged on the bottom surface covering of on the second inclined-plane and face battle array phased array probe on the wafer, and the bottom surface of described second base is the curved surface be inwardly recessed.
2. steam generator adapter filleted corner checkout equipment according to claim 1, it is characterized in that: described linear array phased array probe is provided with two, two linear array phased array probes are arranged on the first inclined-plane side by side.
3. steam generator adapter filleted corner checkout equipment according to claim 2, it is characterized in that: described first inclined-plane forms projection from top to bottom, the secondary inclined-plane that first inclined-plane is divided into two, left and right symmetrical by described projection, described two inclined-planes are respectively equipped with the multiple wafers according to linear array arrangement, a linear array phased array probe is installed on two inclined-planes respectively.
4. steam generator adapter filleted corner checkout equipment according to claim 1, is characterized in that: the side of described second lower end, inclined-plane is upturned, and the height of described tilting is lower than the height of the second upper end, inclined-plane.
5. steam generator adapter filleted corner checkout equipment according to claim 1, is characterized in that: described linear array phased array probe is arranged on the first base by bolt.
6. steam generator adapter filleted corner checkout equipment according to claim 1, is characterized in that: described battle array phased array probe is arranged on the second base by bolt.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520751733.9U CN205038191U (en) | 2015-09-24 | 2015-09-24 | Steam generator takes over inside radius check out test set |
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| CN201520751733.9U CN205038191U (en) | 2015-09-24 | 2015-09-24 | Steam generator takes over inside radius check out test set |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108267507A (en) * | 2016-12-30 | 2018-07-10 | 核动力运行研究所 | Reactor pressure vessel take over inner circle angular region supersonic detection device and method |
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2015
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108267507A (en) * | 2016-12-30 | 2018-07-10 | 核动力运行研究所 | Reactor pressure vessel take over inner circle angular region supersonic detection device and method |
| CN108267507B (en) * | 2016-12-30 | 2023-10-20 | 核动力运行研究所 | Ultrasonic detection device and method for internal corner area of reactor pressure vessel connecting pipe |
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